Potential of ion imprinted polymers synthesized by trapping approach for selective solid phase extraction of lanthanides

Screening of synthesis conditions for the development of a radium ion-imprinted polymer using the dummy template imprinting approach

“…However, among the 6 porogens tested, only 0.75 mL of ACN/DMSO (1/1, v/v) (polar and aprotic) allowed to solubilize the 5 polymerization mixtures depicted in section 2.5 and containing 0.125 mmol of barium. This volume of 6 ml per mmol of template is consistent with other IIPs synthesized by bulk polymerization from 1 mmol of template : 3.6 mL for a zinc IIP [48], 4.3 mL for a calcium IIP [33], 5 mL for lanthanide IIPs [45,49], 5.6 mL for a potassium IIP [50], 8.3 mL for a zinc IIP [51], and 10 mL for iron [44], lanthanides [35,52], and zinc IIPs [53][54][55]. Consequently, all barium IIPs were synthesized in this porogen.…”

“…However, the crosslinking approach does not offer a wide choice of commercial linear chain polymers and thus less chance to make a specific IIP and IIPs developed through the trapping approach may produce unrepeatable results due to the loss of the trapped ligand after several uses of the support [35]. Chemical immobilization was thus selected for this work in combination with bulk polymerization.…”

Highly selective recovery of Ni(II) in neutral and acidic media using a novel Ni(II)-ion imprinted polymer

“…The production of IIPs by trapping has been widely utilized in the last two decades as it permits direct use of commercially available ligands, thus avoiding the need for time-consuming synthesis of new functional monomers. The simplicity of the approach is however associated with a major disadvantage, namely the loss of the ligand during the ion template leaching step, reducing both the effectiveness of the IIP and its reliability over several adsorption cycles (Moussa et al, 2016).…”

All‐solid‐State Potentiometric Cu(II)‐selective Sensor Based on Ion Imprinted Methacrylamide Polymer

“…The most important function of the IIPs is their specific memory, and therefore IIPs exhibit special affinity, high selectivity and very good recognition against the template ions . Many metal IIPs have been prepared including actinides , lanthanides , noble and heavy metals , alkaline and transition elements . The IIPs are used in solid phase extraction , chromatographic separation , adsorption and competitive metal ion removal , artificial reception , membrane separation and sensor construction .…”